package com.sfac.javaSpringBoot.interceptor;

import com.sfac.javaSpringBoot.listener.LogDestroyListener;
import org.apache.commons.lang3.StringUtils;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import org.springframework.stereotype.Component;
import org.springframework.ui.ModelMap;
import org.springframework.web.servlet.HandlerInterceptor;
import org.springframework.web.servlet.ModelAndView;

import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;

@Component
public class ViewMappingInterceptor implements HandlerInterceptor {
    private final static Logger LOGGER =
            LoggerFactory.getLogger(ViewMappingInterceptor.class);

    @Override
    public boolean preHandle(HttpServletRequest request, HttpServletResponse response,
                             Object handler) throws Exception {
        LOGGER.debug("=========ViewMappingInterceptor Pre Handle==========");
        return true;
    }

    @Override
    public void postHandle(HttpServletRequest request, HttpServletResponse response,
                           Object handler, ModelAndView modelAndView) throws Exception {
        LOGGER.debug("=========ViewMappingInterceptor Post Handle==========");
        if (modelAndView==null||
                modelAndView.getViewName().startsWith("redirect")||
                modelAndView.getViewName().startsWith("forward")){
            return;
        }
        String path = request.getServletPath();
        String template = (String) modelAndView.getModelMap().get("template");

        if (StringUtils.isBlank(template)){
            path=path.startsWith("/") ? path.substring(1):path;
            modelAndView.getModelMap().addAttribute("template",path);
        }


    }

    @Override
    public void afterCompletion(HttpServletRequest request, HttpServletResponse response,
                                Object handler, Exception ex) throws Exception {
        LOGGER.debug("=========ViewMappingInterceptor After Handle==========");

    }
}
